Excavating-machine.



H. WALTERS SL-N. BUMPUS.

EXCAVATING MACHINE.

APPLICATION mw FEB.20,1915.

WTA/'F5555 @Q1/oww @fw HIRAM WALTERS AND NATHAN BUMPUS, OF CURTICE, OHO.

EXCAVATING-MACHINE.

Specification of Letters Patent.

Patented Jan.. 25, 1916.

Application filed February 20, 1915. Serial No. 9,485.

T0 all 'LU/tom t 'may concern:

Be it known that we, Hman VVAL'rERs and NATHAN BUMrUs, citizens of the United States, and residents of Cui-tice, in the county of Ottawa and State of Ohio, have invented a certain new and useful Excavating/iachine, ofl which the folle-wing is a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains'to make and use the same, reference being had to the accompanying drawings, and the gures of reference marked thereon, which form a part of this specification.

Our invention relates to ditching o-rtrench excavating machines of the type employing a rotary excavating wheel and adapted for the digging of either open ditches or trenches or those'for receiving drainage tile or the like.

The object of our invention is an improved device to positively maintain the gates closed, during the upward excavating movements of the buckets.

The invention is fully described in the following specifications, and while the same, in its broader aspect, is capable of embodiment in numerous forms, a preferred embodiment thereof is illustrated in the drawing.

Referring to the drawing, 1 and 2 in Figure 1, designate parts of the framework of a machine with which the excavating wheel comprising the features of our invention is associated, and 3 one of the supporting wheels of such frame.

The excavating wheel is shown as comprising the laterally spaced ring members 4, 4 to which the edges of the excavating buckets 5 are secured as indicated.

6, is cutter of the same transverse shape as the buckets 5, also connects the two members 4, in advance of each bucket to form the cutting nose therefor.

7, is sets of internal gear teeth secured to rings 4, 4.

8, are pinions, mesh in gear teeth 7, carried in registering position by a drive shaft 9.

10, is bearings located on frame part 2 in which drive shaft 9 is journaled.

11, are three idler rolls on outer side rings 4, carried by shaft 12 in bearings 13 0n frame part 2, while the lower rolls 11, are mounted on shafts 14, carried by the pendent bearing parts'15, which are secured to the underside of the frame part 2.

16, are hinged gates, hinged to rear ends of buckets and are extended inwardly te adjacent the inner edges of the ring members 4, 4.

19, is a segmental plate to maintain gates 16 closed during the descending movements of the buckets.

23, is conveyer to deliver excavated matter to one side of the trench.

24, is asegmental plate, locatedbetween rings 4, 4 at forward portion of wheel, to pr vent an inward dropping of excavated mattei', during the upward excavating movements of the buckets.

25, is a cleaning blade between rings 4, 4, carried at the upper end o-f rod 26, projecting upwardly to positively clean buckets of excavated matter. rEhe rod 26, carries the blade 25 downwardly between frame parts on opposite side of the excavating wheel, between parts 2, 2 as at 27.

28, is a contractile spring anchored t0 bearing part 15. The spring 28 is to retain the nose of the blade in contact with the outer portions of the buckets.

29, is an adjusting screw t0 prevent the blade 25 from striking the cutting nose 6 when entering therein,

30 is a trip finger of knife like form, located between rings 4, 4, to open gates 16, when met with blade 25 and is pivoted in vertical bearing 31, which is secured to frame part 2, furnishing bearing for contractile spring 32, which is anchored to 30 and 31, and is of suitable strength to revert trip inger 30, after drawn downward with stone or other matter contained in the buckets, that the trip finger 30, cannot cut through.

30, is a trip finger, of knife like form, located between rings 4, 4, secured to segmental plate 24, to open gates 16, when met with blade 25.

33, is the driven sprocket, attached to shaft 36, used for the purpose of conveying chain belt 34, to the point of proximity with hinged gate or end part 16, causing 35 to hold 16 closed from said point of proximity to a predetermined point of discharge.

34, is the rotary chain belt with roller bearings which conveys the power from the drving sprocket 37, on the drive shaft 9, over driven sprocket 33, then with the arc of movement of excavating wheel to sprocket 37.

85, is the lug attached to chain belt 34 which applies the power to 16.

36, is a stationary shaft to furnish bearing for driven sprocket 33, in proper place'. 37, is the driving sprocket located onldriv ing shaft 9, in the center between pinions' parts, except in so far as such limitationsA are specified in the claims. Y

Having thus described our invention, what we claim as new and desire to secure by Letters Patent is,-

1. The combination of an excavating machine, having buckets thereon with gates hinged to the rear end of each bucket, and

adapted to have its opening and closing vmovements in the plane of rotation of the wheel, an endless chain belt with lugs attached to act on each of said hinged gates at the lower part of trench to prevent an opening thereof, except at a predeterminedV point in a revolution thereof.

2. The combination of an excavating machine having buckets thereon with gates hinged to the rear end of each bucket and adapted to have its opening and closing movements in the plane of rotation of the wheel, al driving sprocket applyingpower to endless chain belt with lugs attached at proper point, to act on hinged gates at lower part of driven sprocket, then with 'the arc of movement of said wheel to driving sprocket allowing a free opening of said hinged gates.

Aln testimony whereof we have hereto signed our names to this specification in the presenceof two subscribing witnesses.

` HIRAM VALTERS.

NATHAN BUMPUS.: Vitnesses: A

GEORGE W. KoNnATH, CAROLINE A. KONRATH.

Copies of this patent may be Aoovsained for five cents each, by addressing the k Commissioner of Patents,

Washington, D. C. l 

